~cedric/stegano

chg: updated dependencies.
updated Python dependencies.
chg: [dependencies] Updated pillow.
Updated Pillow and other dependencies.
chg: [dependencies] Updated numpy.
Updated dependencies.
updated CHANGELOG.md file
fix: [security] CVE-2022-22816, CVE-2022-22817, CVE-2022-22815.
fix: [core] various minor bug fixes.
chg: bumped dependencies.
updated CHANGELOG.md file
chg: updated releases note.
chg: [style] !minor reformat
chg: [mypy] fixed mypy issue
chg: [mypy] fixed mypy issue
chg: [mypy] fixed mypy issue
chg: [test] decrease relative tolerance.
chg: [test] decrease relative tolerance.
chg: [test] trying assert_allclose instead of assert_array_equal.
chg: [style] Reformated with black.
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